UefiCpuPkg/Include/Register/StmResourceDescriptor.h

/** @file
  STM Resource Descriptor

  Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>
  This program and the accompanying materials
  are licensed and made available under the terms and conditions of the BSD License
  which accompanies this distribution.  The full text of the license may be found at
  http://opensource.org/licenses/bsd-license.php.

  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

  @par Specification Reference:
  SMI Transfer Monitor (STM) User Guide Revision 1.00

**/

#ifndef _STM_RESOURCE_DESCRIPTOR_H_
#define _STM_RESOURCE_DESCRIPTOR_H_

#pragma pack (1)

/**
  STM Resource Descriptor Header
**/
typedef struct {
  UINT32  RscType;
  UINT16  Length;
  UINT16  ReturnStatus:1;
  UINT16  Reserved:14;
  UINT16  IgnoreResource:1;
} STM_RSC_DESC_HEADER;

/**
  Define values for the RscType field of #STM_RSC_DESC_HEADER
  @{
**/
#define END_OF_RESOURCES      0
#define MEM_RANGE             1
#define IO_RANGE              2
#define MMIO_RANGE            3
#define MACHINE_SPECIFIC_REG  4
#define PCI_CFG_RANGE         5
#define TRAPPED_IO_RANGE      6
#define ALL_RESOURCES         7
#define REGISTER_VIOLATION    8
#define MAX_DESC_TYPE         8
/// @}

/**
  STM Resource End Descriptor
**/
typedef struct {
  STM_RSC_DESC_HEADER  Hdr;
  UINT64               ResourceListContinuation;
} STM_RSC_END;

/**
  STM Resource Memory Descriptor
**/
typedef struct {
  STM_RSC_DESC_HEADER  Hdr;
  UINT64               Base;
  UINT64               Length;
  UINT32               RWXAttributes:3;
  UINT32               Reserved:29;
  UINT32               Reserved_2;
} STM_RSC_MEM_DESC;

/**
  Define values for the RWXAttributes field of #STM_RSC_MEM_DESC
  @{
**/
#define STM_RSC_MEM_R  0x1
#define STM_RSC_MEM_W  0x2
#define STM_RSC_MEM_X  0x4
/// @}

/**
  STM Resource I/O Descriptor
**/
typedef struct {
  STM_RSC_DESC_HEADER  Hdr;
  UINT16               Base;
  UINT16               Length;
  UINT32               Reserved;
} STM_RSC_IO_DESC;

/**
  STM Resource MMIO Descriptor
**/
typedef struct {
  STM_RSC_DESC_HEADER  Hdr;
  UINT64               Base;
  UINT64               Length;
  UINT32               RWXAttributes:3;
  UINT32               Reserved:29;
  UINT32               Reserved_2;
} STM_RSC_MMIO_DESC;

/**
  Define values for the RWXAttributes field of #STM_RSC_MMIO_DESC
  @{
**/
#define STM_RSC_MMIO_R  0x1
#define STM_RSC_MMIO_W  0x2
#define STM_RSC_MMIO_X  0x4
/// @}

/**
  STM Resource MSR Descriptor
**/
typedef struct {
  STM_RSC_DESC_HEADER  Hdr;
  UINT32               MsrIndex;
  UINT32               KernelModeProcessing:1;
  UINT32               Reserved:31;
  UINT64               ReadMask;
  UINT64               WriteMask;
} STM_RSC_MSR_DESC;

/**
  STM PCI Device Path node used for the PciDevicePath field of
  #STM_RSC_PCI_CFG_DESC
**/
typedef struct {
  ///
  /// Must be 1, indicating Hardware Device Path
  ///
  UINT8   Type;
  ///
  /// Must be 1, indicating PCI
  ///
  UINT8   Subtype;
  ///
  /// sizeof(STM_PCI_DEVICE_PATH_NODE) which is 6
  ///
  UINT16  Length;
  UINT8   PciFunction;
  UINT8   PciDevice;
} STM_PCI_DEVICE_PATH_NODE;

/**
  STM Resource PCI Configuration Descriptor
**/
typedef struct {
  STM_RSC_DESC_HEADER       Hdr;
  UINT16                    RWAttributes:2;
  UINT16                    Reserved:14;
  UINT16                    Base;
  UINT16                    Length;
  UINT8                     OriginatingBusNumber;
  UINT8                     LastNodeIndex;
  STM_PCI_DEVICE_PATH_NODE  PciDevicePath[1];
//STM_PCI_DEVICE_PATH_NODE  PciDevicePath[LastNodeIndex + 1];
} STM_RSC_PCI_CFG_DESC;

/**
  Define values for the RWAttributes field of #STM_RSC_PCI_CFG_DESC
  @{
**/
#define STM_RSC_PCI_CFG_R  0x1
#define STM_RSC_PCI_CFG_W  0x2
/// @}

/**
  STM Resource Trapped I/O Descriptor
**/
typedef struct {
  STM_RSC_DESC_HEADER  Hdr;
  UINT16               Base;
  UINT16               Length;
  UINT16               In:1;
  UINT16               Out:1;
  UINT16               Api:1;
  UINT16               Reserved1:13;
  UINT16               Reserved2;
} STM_RSC_TRAPPED_IO_DESC;

/**
  STM Resource All Descriptor
**/
typedef struct {
  STM_RSC_DESC_HEADER  Hdr;
} STM_RSC_ALL_RESOURCES_DESC;

/**
  STM Register Volation Descriptor
**/
typedef struct {
  STM_RSC_DESC_HEADER  Hdr;
  UINT32               RegisterType;
  UINT32               Reserved;
  UINT64               ReadMask;
  UINT64               WriteMask;
} STM_REGISTER_VIOLATION_DESC;

/**
  Enum values for the RWAttributes field of #STM_REGISTER_VIOLATION_DESC
**/
typedef enum {
  StmRegisterCr0,
  StmRegisterCr2,
  StmRegisterCr3,
  StmRegisterCr4,
  StmRegisterCr8,
  StmRegisterMax,
} STM_REGISTER_VIOLATION_TYPE;

/**
  Union of all STM resource types
**/
typedef union {
  STM_RSC_DESC_HEADER          Header;
  STM_RSC_END                  End;
  STM_RSC_MEM_DESC             Mem;
  STM_RSC_IO_DESC              Io;
  STM_RSC_MMIO_DESC            Mmio;
  STM_RSC_MSR_DESC             Msr;
  STM_RSC_PCI_CFG_DESC         PciCfg;
  STM_RSC_TRAPPED_IO_DESC      TrappedIo;
  STM_RSC_ALL_RESOURCES_DESC   All;
  STM_REGISTER_VIOLATION_DESC  RegisterViolation;
} STM_RSC;

#pragma pack ()

#endif